package com.lifu.web;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.lang.reflect.Method;

/**
 * @Description
 * @Author lifu
 * @Date 2021/1/29 11:24
 */
public abstract class  BaseServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doPost(req,resp);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        req.setCharacterEncoding("UTF-8");
        resp.setContentType("text/html;charset=UTF-8");
        String action = req.getParameter("action");
        System.out.println(action);
        //通过反射获取对应的处理业务的方法
        try {
            Method method = this.getClass().getDeclaredMethod(action,
                    HttpServletRequest.class,HttpServletResponse.class);
            method.invoke(this,req,resp);
        } catch (Exception e) {
            e.printStackTrace();
            throw new RuntimeException(e);
        }
    }
}
